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目的:建立宫炎平胶囊中没食子酸、槲皮素和山奈素的含量测定方法。方法:应用高效液相色谱法测定,色谱柱为Agilent-SB C18(250 mm×4.6 mm,5μm),以甲醇和0.3%磷酸水溶液为流动相进行梯度洗脱,流速为1.0 ml·min-1,柱温30℃。结果:没食子酸、槲皮素和山奈素的线性范围分别为98.200~491.000μg·ml-1(r=0.999 9)、7.520~37.600μg·ml-1(r=0.999 9)、4.940~24.700μg·ml-1(r=0.999 9);平均加样回收率分别为96.74%(RSD=1.33%)、98.18%(RSD=1.70%)、97.04%(RSD=1.28%)结论:该方法简便易行、准确、重复性好。
Objective: To establish a method for the determination of gallic acid, quercetin and kaempferol in GongYingPing capsule. Methods: The column was Agilent-SB C18 (250 mm × 4.6 mm, 5 μm) with gradient elution with methanol and 0.3% phosphoric acid as mobile phase at a flow rate of 1.0 ml · min -1 The column temperature was 30 ℃. Results: The linear ranges of gallic acid, quercetin and kaempferol were 98.200 ~ 491.000μg · ml-1 (r = 0.999 9), 7.520 ~ 37.600μg · ml-1 (r = 0.999 9), 4.940 ~ 24.700μg · Ml -1 (r = 0.999 9). The average recoveries were 96.74% (RSD = 1.33%), 98.18% (RSD = 1.70%) and 97.04% (RSD = 1.28%) respectively. Conclusion: The method is simple and easy OK, accurate, repeatable.